duoshoubang/FirstLink/Utils/FLController...

//
//  FLPushViewControllerHelper.m
//  FirstLink
//
//  Created by unicode on 14-9-26.
//  Copyright (c) 2014年 FirstLink. All rights reserved.
//

#import "FLControllerHelper.h"
#import "FirstLinkAppDelegate.h"
#import "LoginViewController.h"
#import "FKPersonOrderController.h"
#import "FKOrderSegmentController.h"
#import "FKMessageManager.h"

static UIImagePickerController *imagePicker = nil;
//static UITabBarController *globalSaveTabBarController = nil;

#define kLoginAnimDuration 0.3f

@implementation FLControllerHelper

#pragma mark - Pop Login View Controller

+ (void)presentLoginViewController{
    [self presentLoginControllerAnimated:YES completion:nil];
}

+ (void)dismissLoginViewController{
    [self dismissLoginControllerAnimated:YES completion:nil];
}

+ (void)presentLoginControllerAnimated:(BOOL)animated completion:(completion)completion {
    FirstLinkAppDelegate *delegate = (FirstLinkAppDelegate *)[[UIApplication sharedApplication] delegate];
    if ([self isShowingLoginNavigationController]) return;
    
    UITabBarController *tabbarController = (UITabBarController*)delegate.window.rootViewController;

    LoginViewController *login = [[self currentStoryBoard] instantiateViewControllerWithIdentifier:@"LoginViewController"];
    UINavigationController *addNav = [[UINavigationController alloc]initWithRootViewController:login];
    
    UINavigationController *curNaviController = (UINavigationController*)tabbarController.selectedViewController;
    if ([curNaviController isKindOfClass:[UINavigationController class]]) {
        FLViewController *currentController = (FLViewController*)curNaviController.topViewController;
        [currentController presentViewController:addNav animated:YES completion:completion];
    }
    
}

+ (void)dismissLoginControllerAnimated:(BOOL)animated completion:(completion)completion {
    [SystemUtil asyncRequestUserAuthority];
    [[FKMessageManager sharedInstance] refreshMessageUnreadMessage];
    
    if (![self isShowingLoginNavigationController]) return;
    
    UINavigationController *currentNav = [self currentNavigationController];
    if (currentNav.presentingViewController){
        [currentNav dismissViewControllerAnimated:animated completion:completion];
    }
    
    // 通知购物车需要更新，用户登录或者更换账号
    [[NSNotificationCenter defaultCenter] postNotificationName:BASKET_NEED_TO_REFRESH object:nil];
}
#pragma mark - Camera Manager

+(void)launchAppCamera:(UIViewController<UIImagePickerControllerDelegate,UINavigationControllerDelegate>*)viewController type:(UIImagePickerControllerSourceType)type {
    if (type == UIImagePickerControllerSourceTypeCamera && ![UIImagePickerController isSourceTypeAvailable: UIImagePickerControllerSourceTypeCamera]) {
        
        UIAlertView *alert = [[UIAlertView alloc]initWithTitle:nil
                                                       message:@"无法使用相机，请前往设置打开"
                                                      delegate:nil
                                             cancelButtonTitle:@"确定"
                                             otherButtonTitles:nil, nil];
        [alert show];
        alert = nil;
        return;
    }
    if (!imagePicker) {
        imagePicker = [[UIImagePickerController alloc] init];
    }
    
    imagePicker.allowsEditing = YES;
    imagePicker.sourceType = type;
    imagePicker.delegate = viewController;
    imagePicker.modalPresentationStyle = UIModalPresentationFullScreen;
    [viewController presentViewController:imagePicker
                                 animated:YES
                               completion:^{
                                   
                               }];
}

#pragma mark - Helper
+ (BOOL)isShowingLoginNavigationController {
    // 判断当前是否正在展示登录界面的navigation
    UINavigationController *currentNav = [self currentNavigationController];
    if (currentNav) {
        for (UIViewController *vc in currentNav.viewControllers) {
            if ([vc isKindOfClass:[LoginViewController class]]) return YES;
        }
    }
    
    return NO;
}

+ (FLViewController *)currentController {
    
    UINavigationController *currentNav = [self currentNavigationController];
    if (currentNav) {
        return (FLViewController *)currentNav.topViewController;
    }
    return nil;
}

+ (NSArray<FLViewController *> *)currentControllers {
    UINavigationController *currentNav = [self currentNavigationController];
    return currentNav.viewControllers;
}

+ (UITabBarController*)currentTabBarController {
    
    FirstLinkAppDelegate *delegate = (FirstLinkAppDelegate *)[[UIApplication sharedApplication] delegate];
    id controller = delegate.window.rootViewController;
    if ([controller isKindOfClass:[UITabBarController class]]) {
        return controller;
    }
    return nil;
}

+ (UINavigationController *)currentNavigationController{
    
    UITabBarController *tabBar = [self currentTabBarController];
    if (!tabBar) return nil;
    
    UINavigationController *selectNav = tabBar.selectedViewController;
    if ([selectNav isKindOfClass:[UINavigationController class]]){
        UINavigationController *presentNav = (UINavigationController *)selectNav.topViewController.presentedViewController;
        if ([presentNav isKindOfClass:[UINavigationController class]]) {
            return presentNav;
        }
        return selectNav;
    }
    return nil;
}

+ (void)backToMainController
{
    UITabBarController *tabbarController = [self currentTabBarController];
    if (!tabbarController) return;
    NSInteger selectIndex = tabbarController.selectedIndex;
    NSArray *viewControllers = tabbarController.viewControllers;
    if (viewControllers.count > 0) {
        UINavigationController *naviController = viewControllers[selectIndex];
        if ([naviController isKindOfClass:[UINavigationController class]]) {
            tabbarController.selectedIndex = 0;
            [tabbarController.tabBar setHidden:NO];
            [naviController popToRootViewControllerAnimated:YES];
        }
    }
}

+ (void)backToOrderListController
{
    UITabBarController *tabbarController = [self currentTabBarController];
    if (!tabbarController) return;
    NSInteger selectIndex = tabbarController.selectedIndex;
    NSArray *viewControllers = tabbarController.viewControllers;
    if (viewControllers.count > 0) {
        UINavigationController *naviController = viewControllers[selectIndex];
        if ([naviController isKindOfClass:[UINavigationController class]]) {
            NSMutableArray *arrayM = [NSMutableArray arrayWithArray:naviController.viewControllers];
            [arrayM removeObjectsInRange:NSMakeRange(1, arrayM.count - 1)];
            
            FKOrderSegmentController *controller = [[FKOrderSegmentController alloc] init];
            controller.selectedType = FKPersonOrderClassifyNonpayment;
            controller.hidesBottomBarWhenPushed = YES;
            
            [arrayM addObject:controller];
            [naviController setViewControllers:arrayM animated:YES];
        }
    }
}
+(void)selectTabbarControllerAtIndex:(NSInteger)index {
    UITabBarController *tabbarController = [FLControllerHelper currentTabBarController];
    if (!tabbarController) return;
    if (index < tabbarController.viewControllers.count) {
        tabbarController.selectedIndex = index;
    }
}

+ (UIStoryboard*)currentStoryBoard {
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:[[NSBundle mainBundle].infoDictionary objectForKey:@"UIMainStoryboardFile"]
                                                         bundle:[NSBundle mainBundle]];
    return storyboard;
}

@end